Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

Independent alternation of generations is present in

  1. Angiosperms

  2. Gymnosperms

  3. Pteridophytes

  4. Bryophytes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Pteridophytes are independent of alteration in generation. They can live “independent of the parent plant”. While gametophytes cannot live independently and are very small. The pteridophytes have a vascular plant.

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

A plant living for a few days is called

  1. Annual

  2. Ephemeral

  3. Biennial

  4. Perennial
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Ephemeral is any short-lived plant, usually has one or more generations per year, growing only during favorable periods (as when adequate moisture is available) and passing the unfavorable periods in the form of seeds. 
  • Hence the correct option is B. 
Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

The plants that live for more than two years are called :

  1. Annuals

  2. Perennials

  3. Biennials

  4. Triennials
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A.Annuals – Plants with a life span of one year or one season.

B.Perennials – Plants with a life span of more than two years.

C.Biennials – Plants with a life span of two years

D.Triennials – Plants with a life span of three years.

So, the correct option is ‘Perennials’

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

A biennial plant is one which ___________________.

  1. Lives for two years but flowers towards the end of the second year

  2. Produces two sets of flowers in a year

  3. Grows during the second year from seeds shed turning the previous year

  4. Lives and grows from year to year
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A biennial plant completes its life cycle in two years. It grows vegetatively in the first year and flowers, produces seeds, and dies in the second year.

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

Put a tick mark against the correct alternative in the following statements :
Identify the Kharif crop :

  1. Barley

  2. Mustard

  3. Rice

  4. Wheat
Reveal answer Fill a bubble to check yourself
A,C Correct answer
Explanation

The crops are usually sown at the beginning of the monsoon season around June and harvested by September or October are called Kharif crops. Eg:Barley, Rice.

So, the correct option is ‘Barley and Rice’. 

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

Haplo-diplontic life cycle is found in ____________.

  1. bryophytes

  2. pteridophytes

  3. fungi

  4. both (a) and (b)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Haplo-diplontic type of life cycle involves the clear alternation of generations between a haploid gamete producing gametophyte and a diploid spore-producing sporophyte. Both bryophytes and pteridophytes exhibit this kind of life cycle pattern.

So the correct option is D.

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

Which kind of life-cycle pattern is exhibited by seed-bearing plants?

  1. Haplontic

  2. Diplontic

  3. Haplo-diplontic

  4. All of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In a diplontic life cycle, the dominant free-living phase is the diploid (2n). The sporophyte is photosynthetic. The gametophytic phase is represented by single to few-celled haploid gametophyte. All seed-bearing plants, i.e., gymnosperms and angiosperms exhibit this type of life cycle.

So the correct option is B.

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

Which of the following plants is biennial?

  1. Jack fruit

  2. Pineapple

  3. Banana

  4. Carrot
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The carrot is a root vegetable, usually orange in colour, though purple, black, red, white, and yellow cultivars exist. The carrot is a biennial plant. Carrots are a domesticated form of the wild carrot, Daucus carota, native to Europe and southwestern Asia. The plant probably originated in Persia and was originally cultivated for its leaves and seeds. The most commonly eaten part of the plant is the taproot, although the stems and leaves are eaten as well. 

So the correct option is 'carrot'.